Title :
1-bit quantiser with rail to rail input range for sub-1 V ΔΣ modulators
Author :
Maymandi-Nejad, M. ; Sachdev, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Canada
fDate :
6/12/2003 12:00:00 AM
Abstract :
A new, fully differential comparator with rail to rail input range is presented. This comparator can be used as a 1-bit quantiser in sub-1 V ΔΣ modulators. The quantiser is laid out in 0.18 μm CMOS technology. The post-layout simulation results show that the quantiser is capable of working at 10 MHz with 10 μV resolution. This quantiser is successfully used in 0.8 V first-order and second-order fully differential ΔΣ modulators.
Keywords :
CMOS integrated circuits; comparators (circuits); delta-sigma modulation; modulators; quantisation (signal); ΔΣ modulators; 0.18 micron; 0.8 V; 1 bit; 10 MHz; CMOS technology; delta-sigma modulators; first-order modulators; fully differential comparator; rail to rail input range; second-order modulators; single-bit quantiser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030588
